Heat Shield Mat Automotive Thermal Deadener Deadening 50mil 37.5sqft w/Free Installation Roller Package contains 1 roll of 18 inch wide x 24.975 feet long Heat Shield Mat, Free Plastic Roller and Instructions Sheet. Heat Shield Mat is made from a specially formulated high performance compound that is proven to reduce road noise, rattles and vibration while simultaneously improving your sound quality. The superior ingredients in the extremely durable Heat Shield Mat also make it an effective thermal barrier to keep the heat out. Available in stock for immediate shipment. Extra shipping charges apply to HI, AK, PR and International Destinations.